Yasaotoko to Sadistic

A collection of stories:

Konoyo no Hate Made I Love You (I Love You Until the End of the World)

A story about a stalker and the object of his affection.
Inu to Kami-sama (God and the Dog)

From Takase Hajime's perspective of his stalker.

3-6. Seesaw Game

The story of glasses-wearing salaryman and his stalker continues.
Extra - Yasaotoko to sadistic (Gentleman and Sadistic)