This was ages ago but I'll do my best to list out the key points:

• High school slice of life feel
• These two guys share the same desk, in different times of the day.
• they start to communicate (either by writing on the desk, or leaving notes, can't remember)
• one of them falls in love with the other
• happy end!

Does anyone know what this is?

My Other Manga Threads
Search for these threads as links would kill my sig limit.

• Middle School Heroine Love Stories
• Older, Gentle Male Love Interests
• Romance with Capable Women/Heroines
• Wise Male Mentor x [DECENT] Heroine
• Gangster/Physically Strong Main Heroines
• Romance with Stubble Chinned Guys Because It's Sexy
• Love Triangles Involving Male Teachers

My threads are as specific as they can; it's good if they can help you out!

After-School Strawberry Flavor in Cello Mellow.