It’s not harem but it kinda is? Listen okay, both guys and girls find him interesting and respect his determination! Most of those in the “harem” arent actually romantically attracted to him. There are some that do show a little affection but he’s not interested and says and they back off!
A girl who did like him didn’t blush around him constantly and they still worked together professionally during that mission despite her attempts to win him over for those few chapter.
So I truly recommend it

Before I start, does this one have romance or harem?