Scramble☆Game(2004)

Scramble☆Game

1-4. Scramble☆Game (スクランブル☆ゲーム)
Suzuhara Jan is a new college student determined to devote himself to his studies. But a chance meeting with handsome professor Aoyama and discovery of the "Game to Win the Professor's Heart" become a distraction. Though he can't seem to stay away from Aoyama, the game may be impossible to win...

5. Meikyuu no Koibito (迷宮の恋人)
Takashi Namasami is wandering lost in the woods when he's found by young master Wakamiya Hideto. But the pushy youngster has a requirement for rescue: Takashi has to be his pretend lover!