Damn... I just finished reading this. At first, I was like: "yeah, this is just a fetish manga", but then it got so much deeper and... Wow, tbh, I really really liked it. I ADORE wholesome cute lovey-dovey stuff, but I also adore this type of stuff, just in a different way. Fucked up characters are SO interesting. This end felt so fitting. Tbh, it reminded me a bit of Adabana, with the whole "death in a winter night" and the "dreaming of being happy together". This is much more fucked up tho, imo.
Also, I also hate the glasses bish, I wanted to see her Best friend find out about the fcked up things she did and be horrified by her
PS: in another universe, Ai and Hina would've made a cute couple. In a universe where they're not so mentally ill hahaha