Get three stars with Mayo

Fail 20 dates.

Fail 5 dates.

Finish with a two-star date 5 times with any character.

Get a massagy with Nicole

Fail any date

Get a massagy with Rial

Match a date on Linger

Enter the training room with every dragon. (Now that you're ready to fight, you can approach whoever you want.)

Enter the training room with both starting dragons. (Is that a you-know-what reference?!)

In the training room, attack the flying dragon sandbag at least 25 times. (Spin it to win it! And don't worry, spin can help that disabled sandbag fly again.)

Clear the final level of any tower as Lunella Tengu.

Unlock every dragon.