Edit: well i did fell to the ichika's trap; but im ready to crawl back up whenever yotsuba's ready to make the scene, so for now im going to stay at this dark pit of ichika's trap hahahaha
The 5 girls were originally one called Rena, the girl the grandpa mention.
With some science/magic stuff they split 5 years ago. The girl kissing MC at chapter 68 is the girls fused momentarily. They will be fused again at the end of the manga, permanently.
This explanation will make writing the ending easier for the author and won't upset waifu people.
3 out of 5 are already in love with him (and Yotsuba is also likely in love too). I don't see how this won't end in harem at this point. Laws be dammed. Also the marriage scenes are obviously bait to incite pointless waifu wars.
Well we may never know who kissed Fuutarou but from what i see this manga has been favoring miku and ichika and itsuki but mostly miku. so its prob not miku but prob the original girl which is itsuki.
Haven’t checked back to previous chapters to make sure, but what if each flashback of the wedding is with a differ twin? And that fusion theory is like wtf lol.