Hikigaya Hachiman (比企谷 八幡) finally realized the reason why Yukinoshita Haruno (雪ノ下 陽乃) acted as if she is Yukinoshita Yukino (雪ノ下 雪乃)’s enemy. (Yahari Ore no Seishun Love Comedy wa Machigatteiru. Yahari Ore no Seishun Love Come wa Machigatteiru. Yahari Ore no Seishun Rabukome wa Machigatte Iru. Oregairu My Youth Romantic Comedy Is Wrong, as I Expected. My Teen Romantic Comedy SNAFU やはり俺の青春ラブコメはまちがっている。 俺ガイル 果然我的青春戀愛喜劇搞錯了。 anime ep 11)

Could it be…

Yahari Ore no Seishun Love Comedy wa Machigatteiru.
Yahari Ore no Seishun Love Come wa Machigatteiru.
Yahari Ore no Seishun Rabukome wa Machigatte Iru.
Oregairu
My Youth Romantic Comedy Is Wrong, as I Expected.
My Teen Romantic Comedy SNAFU
やはり俺の青春ラブコメはまちがっている。
俺ガイル
果然我的青春戀愛喜劇搞錯了。
anime ep 11
Hikigaya Hachiman (比企谷 八幡)