Death March to the Parallel World Rhapsody, Vol. 17 (light novel) — Hiro Ainana

A HERO'S WORK IS NEVER DONE!
Enjoying a rare moment of respite, Satou and his party return to the royal capital to be decorated for their accomplishments. But there, they hear from Princess Sistina that the royal symbol -- the cherry blossom -- has ceased to bloom. Taking it upon themselves to investigate while enjoying the sights, the party inevitably catches wind of a situation they never would have expected...