i dont know how to feel i guess. no one is in fault here and no matter how much i think there is no "right answer" i wouldn't know what to do if i were in any of their position. however i'm not sure if tougo had any feelings for haru. from his pov all i can get was being with her was convenient for him "not good not bad it's just fine" pretty sure he have harbored feelings for the older sister since he was still dating haru. i guess if i had to feel bad i would feel bad for the older sister really... idk how much guilt she felt its tying her down
From what I understood, he makes it quite clear that he never felt a single thing for haru but went along with it as he did with everything his mother wanted from him all his life. Natsumi was the only person that ever intrigued him and he felt himself slowly falling for her; however, if haru hadn't died he would have simply continued his unemotional relationship with her until they died (marriage, children, etc.). When Haru died, the plans his mother made fell apart for the first time and he was suddenly confronted with his feelings towards natsumi, since he was now no longer engaged and it was technically possible now to date natsumi.
im a sucker for shoujo with multiple couples!!! esp ML group x FL group and this one is just <3333!!! no unnecessary dramas i just AGHHHH and i love all the couples not a single problematic one. its super funny esp kai and his fam and i also love his friendship with the girls. taka and shimura is my fav omg takaa pls get me a guy like him in rl!!!!! and i wish we could see more of kagura and tora's development bc the way they got together is kinda... aburpt? BUT I CAN NEVER GET ENOUGH OF TAKA AND SHIMURA WAHHH THATS IT!! ITS SO GOOD DEF RECOMMENDED











so cuteee ╥﹏╥