A lot of generic tropes: MC Deemed Useless but actually is OP Trope, Brother Complex Trope, Girl Abandoned by her team trope, Savior Complex Trope (Twice, Both main girls instantly fall in love while being rescued)(Edit: LOL actually is three times, I just found the newest chapters.), Kirito Clone Looking MC Trope, Oblivious MC trope, love triangle trope, etc.
Kinda (Edit: very!) trashy tbh... but it's fine I guess.