Yonezu Kenshi's song "Lemon" and Fuji Fabric's song "Wakamono no Subete" will be published in the music textbook 'Atarashii MOUSA1' for high schoolers to be used during 2022 (year 4 of the Reiwa era). 

The 'MOUSA' textbook series is published by Kyouiku Geijutsu Sha Co., Ltd. with the concept "a textbook that you want to keep on hand after you graduate." 'Atarashii MOUSA1' has been updated so that students can learn about the charm of music in a versatile way. Both "Lemon" and "Wakamono no Subete" will appear in its 'Jidai wo Irodoru Kasho Kyozai' (which roughly translates to: song materials that make up the times) page.