リトルバスターズ！ Last of Refrain

Riki Naoe has narcolepsy and a circle of friends who call themselves the Little Busters, put together years earlier by Kyousuke Natsume. In high school they set about filling out a baseball team, largely around Kyousuke's sister Rin, and the closer Riki and Rin get to each other the closer they get to what the group calls the secret of this world. Zen's manga picks that thread up where Little Busters!: End of Refrain left it.