Nah, Renako often accidentally acts in toppy ways whenever she doesn't get mentally blocked by her self worth issues, anxiety, and internalised homophobia.
No contacts Kaho is the easiest example, but there's also the stuff with Mai at the end of volume 1, the kiss with Satsuki in volume 2, her winning their 3p match in volume 2, the lap pillow with Mai in volume 2, the ageplay stuff in volume 3, etc.
She can't top for shit and thus easily ends up in the position of a bottom, but deep down I believe she is a top / a top leaning switch