I regret that I didn't read it sooner.
Unexpectedly the storyline is good and more organized than Bokuben.
There are still a few parts that indicate this is shounen, this type of harem is not like most who end lewd. It's fluffy and adorable.
Also, the main character is not easily distracted and his firm composure which makes it difficult to guess. Although it doesn't focus on the theme for learning (in this case, the process), the conflict is more directed to individual problems.
Among the twins, I prefer Miku. But Itsuki is also good girl, quite serious, she is stylish and has nice tastes too (I'm a girl, just so you know).
Well, I don't follow war-team trend, so whoever it is won't be a problem, want the winner is a childhood friend or the person who now understands him the most.