Ending #1
1) Ask Kento to leave.
2) Take the pill.
3) Tell Kento to go to Aya's house.
Ending #2
1) Ask Kento to leave.
2) Take the pill.
3) Tell Kento NOT to go to Aya's house.
4) Don't slap Kazumi.
Ending #3
1) Ask Kento to stay.
2) Take the pill.
Ending #4
1) Don't take the pill.
Ending #5
1) Ask Kento to leave.
2) Take the pill.
3) Tell Kento NOT to go to Aya's house.
4) Slap Kazumi.
The Easter Egg is happy! You did see it, right?