This story is honestly really messed up. The main character, Hirofumi, regains his memories after two years, but as a result, he loses the memories of what happened during those two years (this sometimes happens with retrograde amnesia). Hirofumi was essentially another person. During that time, he got a lover, Daigo. Daigo is mentally unstable and relies on Hirofumi to function. Hirofumi now doesn’t love Daigo and doesn’t want to be with him due to the fact that Daigo is a complete stranger. Everyone antagonizes Hirofumi for not accepting Daigo, “abandoning him” when Daigo needs him, and for being cruel to Daigo when all Hirofumiwants is to be left alone and try to rebuild his life after missing out on two years of it. We are meant to sympathize with Daigo, but it’s impossible when he’s abusive and constantly emotionally blackmailing Hirofumi. How on earth can Hirofumi’s own family be judging him for not wanting to be with someone he doesn’t know?

In the end, they obviously get together, but it seems like pity and lust on Hirofumi’s part. Hirofumi is trapped. Hirofumi is a prisoner, and we’re supposed to view this story as some sort of romantic tragedy and feel bad for Daigo because he had a rough past and feels abandoned. That is beyond messed up.

Note that I deducted the score by a point due to my own rating system, in which I deduct a point if the MC is sexually assaulted by their love interest.