“私立天翔学园”位于巨大学园都市群的第七学区。　　心事重重又不善言辞的转学生音之宫朔，在与歌唱社团和考古学社团中个性丰富的同学相处后，感受到与同伴们相处的愉悦。　　与外表高冷内心热情的神乐苍介、语出惊人难以捉摸的往田诗的邂逅，也让他深刻感受到“音乐”的乐趣。　　有笑有泪，偶有争吵。　　日子一天天过去，他发现自己身上正发生着从未有过的改变……　　这是讲述少年们努力生活的青春物语。

NASA’s next-generation space telescope TESS (Exoplanet Survey Satellite) has begun its search for Earth-like planets belonging to other star systems. How many of these ‘exoplanets’ can host life, and what kind of lifeforms can evolve in these environments?