I don't see it. There is only one path: Kanan. Everything else is fluff and gags.
Kyougi never entertained a harem and straight up refused when Valentine asked.
There's no "NTR" either. Miltie and Miel are siscons for Kanan, Lillum has some delusion, but got ignored when she tried testing him, Tekka made no moves ever since she lost the duel. Kyougi's frequent "lucky pervert moments" might create that impression, but they are just that: gags in a gag manga.
The only one "in the running" and only on the account of not being flat out rejected yet is Jeanne. Jeanne who spent the last 5 chapters bawling her eyes out because she couldn't steal Kyougi from Kanan while Kanan and Kyougi deepened their relationship and Kanan went out of her way to make a contract with Hanako so Kyougi can fulfill his promise.
In fact, for the past 30+ chapters Kyougi has paid next to no attention to any of the side girls and was focused entirely on Kanan and helping Hanako.