The decision this character makes seem really stupid to me. First of all keeping quiet is a dumb decision, secondly it's obviously someone who knows his phone number, thirdly he should have questioned runa the exact moment when he saw her in the street with a hoodie on and if he didn't suspect her still tell her what the hell was going on. Funny enough I do suspect his friend hinata and his friend's sister runa
IT SHOULD'VE BEEN ME NOT THAT BASTARD ITS NOT FAIR WHY DOES EVERY MC GETS A YANDERE GF BUT NOT ME THAT BASTARD IS FAR FROM THE ORDINARY BACKGROUND CHARACTER
I don't really get how these creators go through the entire editing process and put the manwha/manga/manhua panels (supposedly)aligning with the words but don't realize when the narration is VERY obviously different from the image they're literally looking at. Seriously, if you're going to use AI for your script at least do this much proofreading.