Despite being a shitpost of the harem genre, the characters in this manga are a thousand times better than some serious ones out there. The chad Rentarou alone is better than an entire cast in many manga series.
Also Iku's smile in page 8 should be a national treasure
Truly a well written harem manga!
If the author really intend to go until 100 gf, it'll be quite long haha (and shouldn't forget some fan-service, story building and cute chapters which could make it longer)
Anyway as long as we all enjoy reading it !