Love In One World (Junjou Romantica & Sekaii...
One day, Misaki followed Usagi to the office and saw a young man. He looks a bit like him. He thought it was just his imagination and continued to find Usagi.
When he found Usagi, he saw him talking to a guy that looks like him but with black hair and glasses. Misaki decided to hide behind the pillar to spy on him. Then there was Onodera Ritsu that was with Misaki. They were both spying on their lovers. Then Usagi spotted Misaki, Takano spotted Onodera.
There their lives continued.
I do not own Junjou Romantica & Sekaiichi Hatsukoi but I own the plot and the cats that Onodera and Misaki found.