Well, this was a way of showing the 5 stages of grief while throwing strong symbolic and relatable content into the mix. The fact that this is a BL is a bonus too. It's quite a shame that this drama is underrated, because although the theme seems a bit disturbing and morbid at first glance, when one considers a BL with such a ship, this unique plot transcends all that entirely.

This BL story goes beyond the typical love story.
It's about a first love tale; most of them are doomed not to last.
This one took 2 years too bloom, alas when it did it was already too late.

"It was in the blink of an eye. It was so sudden, it was inevitable. I couldn't do anything." - Mitsuru

It starts with the ending, and ends with a possibility of a new start.
(Although, it seems there's a cycle too, of when a person is stuck in the past.)
Confusing? Perhaps, but the drama is fairly complex and simple at the same time.
All it takes is to read in between the lines, analyze the symbolic value it presents in the scenes and lines.

The content is relatable. It tackles life and death in a calm, soothing way.
Almost too natural in an unnatural way. Then again, Japanese dramas are keen in this thematic.
They are able to teach valuable lessons, and make it look like it's a natural, mundane rite of passage.

The way this drama was wrapped was beautiful, heartwarming and bittersweet.

"How can we heal the sorrow of what was given and taken away?" - Mitsuru

When people start to forget Koichi's existence, and seeing Mitsuru's frustrated was painful.

Those we lose still live in our memories, in our hearts, there's always resurrection, when time passes the memory lasts but the image of the person sometimes fades without us realizing it does. We find ourselves forgetting about those we cared about, and then remembering them from time to time. It's the natural course of life. This drama handles those themes in a light way, but in the underlines of the meaning of their lines, their scenes and the plot the message is there.

The five stages of grief are highly represented by our main lead Mitsuru.

"I cried so much that my whole body turned into tears. But in the end... the sadness did not go away at all. " -Mitsuru

He can't let go of Koichi. He denies the truth, lives with the pain, and knows he has to embrace reality.
The connection of a newborn baby, in the birth of Koichi's little sister, shows that while in death and loss there's also life. It goes on, the living keep on living, time waits for no one. The concept of Koichi being trapped in eternal yesterday, it's a ephemeral miracle. Perhaps the will to hang on to life a little longer, to his love, to his unfinished and unresolved love story. Mitsuru's feelings that keep him there, and make him well co-exist. But, nothing lasts forever. And neither will he. The departure is eminent and they have to deal with it. Make peace with the situation, acknowledge their pain and predicament.

From the very start we know where this will leads us, and yet we still follow the ride.
Very much like Mitsuru and Koichi who seemed enthralled by their first glance, we find ourselves wanting more.
Hoping for a miracle, albeit knowing it's impossible. Wishing that there's a happy fairytale ending instead of reality.

I think it's realistic as to where or how it ends. It was meant to be a moral fantasy story after all.
Maybe it was mostly all in Mitsuru's head, his profound wish for it to be true. To have Koichi near him.
Or maybe it was really an odd miracle provided just for them, in a short term. Koichi was his shield and Mitsuru his life.

Komiya Rio and Inoue Sora did a phenomenal job in their roles. I can only praise then. Rio's character was a hard one to portray and to be believable. A living corpse, the walking dead, not a zombie, not entirely dead but not alive either. And yet he did it. The pain, the struggles, the longing and his love for Mitsuru is there implicit even before the accident. Mitsuru being more reserved, took him more time to acknowledge his feelings and maybe that's why it was so hard for him to let go, and what made Koichi wait. But time was against them, and as much as Koichi and him wanted to stay and last, it was for the best that it ended.

Rio's sorrow as he cried in the last episode, broke my heart.
They were too pure, and their cute first love was robbed too soon.

"Koichi. You're still my number one. I love you the most." -Mitsuru

There can only be a number one. Despite the room in our hearts, there's always a special person in it.
For Mitsuru it will always be Koichi. I love that the sensei took a picture of them, it validates that it was real?
It's a memento, a token to keep close to the heart. Even after years, Mitsuru still can't forget his first love.

The story is mostly under the perspective of Mitsuru, but I liked that in the end we have an insight of Koichi.
As he describes their first meeting, his on growing feelings for Mitsuru and their journey. The tender love and enthusiasm in his voice as he tells the details, is endearing, despite bittersweet, since we all know where it leads.

"I didn't know how many first-year high school students there were that year. But meeting Mitchan was a miracle to me. He looked scary. However... He looked at me with a strong gaze. Yes. I fell in love. I never thought I would fall for a man. So I was surprised. But it didn't matter. As long as it's Mitchan." - Koichi

The real definition of he fell first, but the other fell harder could he applied to these two.

Superb acting from the main leads, Komiya Rio and Inoue Sora.
Once again Japan is able to present a strong plot but make it somehow emotional, a fantasy more a less realistic and symbolic and not a dark, heavy and only tragic.

The OST is great, I really enjoyed it. The intro song called Sunshower by Ayumu Imazu is so alluring given his vocals, and the lyrics so meaningful. Meanwhile the ending theme called Eternal by Aoi Kubo, is graceful and emotional at the same time.

And the whole cinematography and overall coloring of the drama too. Despite the gloom, it holds a warm filter. It focuses more on the male leads, the support characters appear for that purpose only. They don't create unnecessary drama inside of the drama, or add more complexity to the plot. They are meant for value and that's about it. The dialogues are intelligent and mostly to reveal hidden truths and relatable lessons for us the viewers to notice.

It's a mature first love drama. Not suitable for those who idealize typical romance or only want fair happy endings.
If you are not ready for a heartbreak, for a few tears, and valuable moral lessons, then this drama is not for you.

Don't let the theme or the first episode discourage you from seeing all 8 amazing episodes and grasp the tragic beauty and value that this drama holds. It's wistful, and bittersweet but there is a refined grace to it in the way it teaches it's content. To the purity of the main characters, or the soothing way they talk and how the scenes present themselves. To the pent-up emotions, confessions and revelations. To how the story unfolds. What could be truly tragic would be missing all of this, just because it doesn't settle with the overall idealization of what a love story and BL should be like, or if it has or not a happy or sad ending to begin with.

If you can see all this combined then give it a go.
Have a tissue box and heart ready, are my words of advice.