Day 11[edit]
As should be usual by now, the day will start in the classroom. Go down the staircases to the first floor. Here you should see Monta. You've only seen him once before outside school, but he seems to be good friends with Sena. After talking with him, walk back up to the second floor. Run to the end of the hallway and you'll bump into Hiruma. Talk a bit with him and then go outside to the Devil Bats HQ. Mamori should be the only one there. Talk to her and she'll give you a quiz once again. Finish the quiz and the day will end.
Day 12[edit]
Day 12 is a big one - here, you'll be facing the fearsome Ojo White Knights. This will be a step up from the Cupids, but still shouldn't be too hard - it's only the second official game, after all. The three players you'll have to watch out for are as follows: the first is #40, Seijuro Shin - the linebacker and star player of the team, with a position rivaling Sena's. The second is #18, Haruto Sakuraba, a wide receiver for the Ojo White Knights. His catches should be blocked at all times. The third is #60, Makoto Otawara. He is a lineman for the team and will try to block your team from reaching the end zone as best as he can, along with Shin. Another one to look out for is #3, Ichiro Takami. He is the quarterback here and he, like Hiruma, will be making the passes. Your goal in this match will be to make two touchdowns - one at the beginning of the match and one at the end of it. The best way to do this will be by making either running to the end zone or throwing the ball to move the line of scrimmage closer to your end zone.
After the game, head back to the Deimon Devil Bats HQ. Another small mini-game will have you running around and putting up flyers. This shouldn't be much of a problem. After you're finished with the mini-game the day will be over.
Day 13[edit]
Go over to the baseball hangout and talk to Monta there. This is all you'll need to do today.
Days 14 & 15[edit]
Finally, a little more progression with the story will come about. Monta becomes a new candidate for the Devil Bats. From where you begin, go down to the second floor. Walk far enough and you'll see a sign-up sheet. Unfortunately, it doesn't look like Monta made it on the team. An open room will be near the sign-up sheet. Go into the room and there you'll see Monta. He doesn't seem to be too happy about missing his chance to get on the team. Sena tells him he can join the team, and Day 14 will end. Day 15 seems to be skipped here; when Day 14 ends, you'll be brought over to Day 16.