What makes Sakura by Ikimono-gakari notable?

'Sakura' became a defining track for Ikimono-gakari, reaching number one on the Oricon charts and becoming synonymous with graduation ceremonies in Japan. Its widespread acclaim helped cement the group's popularity and influence within the J-pop genre. When 'Sakura' was released in March 2006, Ikimono-gakari was on the rise, following their debut album 'Kamikaze' from 2004. This sophomore effort further solidified their place in the J-pop scene, showcasing a maturation in their sound and lyrical depth.