The Royal Tutor, Vol. 5 — Higasa Akai

Since becoming their tutor, Heine has grown to understand and appreciate the princes' unique personalities, strengths, and (widely varying) tastes, but there is much about his charges that still remains a mystery. When an incident from Kai's past resurfaces and becomes the talk of the kingdom, Heine and Kai must go make peace with the prince's accuser. Little do they know, their visit will land the prince in fresh scandal of a more sinister sort!