Sanada is a difficult man to like, honestly. None of his feelings justified what he did, nor the fact that he never attempted to put a stop to it. But he is trying to redeem himself, though I am not convinced he is redeemed. However, one thing I will say is that I am certain he will never purposefully hurt Itonaga again
Edit: Itonaga's such a precious dumpling, why would you want to hurt him, it just makes zero sense. That bully didn't even apologize, what an arsehole. Glad Sanada cut ties with him
Itonaga-kun no Koi no Ito