One thing I've always loved about Japanese dramas is how they come up with crazy concepts like this and somehow make them work. I feel the main reason for this is the balance in their stories. They take a unique premise and make it feel grounded with relatable characters and genuine relationships.

Apart from the quirky setup, the biggest strength of Eien no Kinou are its two main leads. Koichi is the kind of person everyone loves to be friends with. His fun, cheerful and kind personality draws people in. Micchan on the other hand is the calm and collective type, and he seems unapproachable and slightly intimidating to the people around him. However, this doesn't stop Koichi since he's determined to become friends with him. What I really enjoyed about this relationship and their characters is that they slowly and realistically established their bond, despite this show's short length. 

Koichi showcases an admirable inner strength by the way he handles the debilitating situation he's in, being more concerned with how other people feel than allowing himself to grief his own loss. Micchans experiences shaped him into a lonely, introverted person that has a hard time being around other people. He hates himself for being "cold" which he absolutely isn't. His sensitive and deeply moving monologues show that once he has someone in his heart, he's an incredibly caring and loving person. These two polar opposite characters develop a genuine bond and give each other the warmth and love both of them were craving, and it was truly touching to see them feel at home with each other. 

I really enjoyed the performances of Komiya Rio and Inoue Sora. Komiya Rio already won me over as Tanaka in Takara-kun to Amagi-kun which was a drama that I personally didn't really enjoy, however his performance stood out to me in the few scenes he had. While Tanaka is a vastly different character to Koichi they both have an engaging and likable charm in common which I credit the actor for. You're on his side and want him to be happy, so when he does allow himself to show his pain, it hits you hard. Inoue Soras Micchan is gentle, restrained, and yet you can see a whirlwind of emotions behind that facade. He convincingly portrays Micchans calm strength and protective nature, as well as his vulnerable and lonely side. 

While I enjoyed this story, and they were able to move me despite the dramas short length, I can't help but feel the impact would have been even stronger if they had the time to establish the characters and their relationships further. Spending more time with the leads before the accident and developing their other friendships would have given this story another layer, which I would have really appreciated. Some parts of the story felt rather random and disconnected, simply because they lacked the time to explore them. 

I've to quickly mention the amazing OST of this drama. The opening theme Sunshower by Ayumu Imazu is a melancholic yet hopeful song that made me feel emotional after its first few notes. While the hauntingly serene ending theme, Toi Natsu no Hi by Kubo Aoi makes you reminisce the episode once the ending credits start. Both songs are absolutely beautiful, with touching lyrics that add to the meaning of the story. I thought the scenes of the ending credits getting blurrier with each episode was a really nice detail, and so was the changed ending for the final episode.

Eien no Kinou is a poignant story about cherishing the time you have with the people you love. It's a delicate yet powerful drama about love and friendship, told with so much heart it lingers in your thoughts long after you've finished it.