1. Te wo Tsunaide Sora wo
http://www.mangago.me/read-manga/te_wo_tsunaide_sora_wo/
→ 2. Amayakana Toge (sequel)
http://www.mangago.me/read-manga/amayakana_toge/
→ 3. Aisanai Otoko (spinoff)
http://www.mangago.me/read-manga/aisanai_otoko/
→ 4. Vanilla Star (spinoff)
http://www.mangago.me/read-manga/vanilla_star/ - See more at: http://www.mangago.me/read-manga/te_wo_tsunaide_sora_wo/#sthash.nvcb9iMF.dpuf
→ 5. Make Me Happy
Aisanai Otoko