Responses
He's not naive, but has confidence in their relationship and trusts Haebom fully!
He knows that Haebom wants to be with him only, so to him, the redhead is not a romantic rival!! He's just a person who is bothering Haebom!!
Taesung is a bit naive. Did you know that sometimes there’s people like to snatch what’s yours.?! Goodness boy, don’t let your guard down..!! ヽ(`Д´)ﾉ