just keeps on collecting girls :P

Bouta have a whole harem

Umm.... why didn't he just pass through the gate? And why does he feel the need to "fight" in a month to the death against someone far stronger? What is he afraid he is going to be called names? Just train the 3 months like he said and then go kill the guy.

Cultivator novels and anime largely ignore common sense. Sure, setting a date means he shouldn't be disturbed by that opponent for a while, but what can they do against him in the middle of the sect except harass him a bit until he can train for a few months. Then he doesn't have to worry about someone anymore.

Hasn't it been less than 2 months since he was reborn? A month to get from 3 to 6, then another month or so from 6 to 8. All he needs is less than a year and he'd likely be stronger than the sect leader.

Yes, the other guy has fear and thinks that the MC will need more than 3 months to get to his level, so he decides one month death match. Like you said he should have less than 2 months since reborn but has increase many levels. He only got like some weeks after getting to the sect and increase an additional level, so one month is enough for him to kill the guy.

to much talking

Way too much girls
I see where this is going
The bride from the start will be no 1 and the teacher girl will be no 2
Just like btth

Straight up insult by the dragon guy😜

He collecting them all, all them girls