beta
the only good thing in the redemption arc was that he atleast knows how to run away properly, better than kiss me liar (not a good comparison but it counts), the alpha did not suffer that much just that he wasn't able to bathe for 3 days which they made a big deal of. haejin didn't seem like he'll forgive easily but he did, the fast pacing of the author is also part of it.
I'd like to suggest gold gray if you want characters that takes the situation seriously and not suddenly become a comedy manhwa