1. clannad after story
http://myanimelist.net/anime/4181/Clannad:_After_Story
2. Tenge Toppa Gurren Lagann
http://myanimelist.net/anime/2001/Tengen_Toppa_Gurren_Lagann
3. Toaru Kagaku no Raigun
http://myanimelist.net/anime/6213/Toaru_Kagaku_no_Railgun