Responses
Have you read the Spin-off? (MC of Konya still have important role here. HA+)
http://www.mangago.me/read-manga/kimi_to_kore_kara/
Other Choices
http://www.mangago.me/home/mangalist/1491/
http://www.mangago.me/home/mangalist/196/
Konya mo nemurenai similar manga..does anyone knows? ╥﹏╥