This manga is one of descendants of Nisekoi, along with BokuBen and Go- toubun* included IMO*:
- Too many needless drama.
- Stupid harem; 80% of the girls feels like one dimensional.
- Dragged or milked too much, thus no progress in story.
- Fan service and cancerous waifu wars.
I really missed the old times when harem series was good like TWGOK, Negi and etc. Harem nowadays like meh: most would be wish-fulfiling and self-insert stories.