is a mysterious human who suddenly appeared in front of Rin, Ritsu and Rina one day. He wears a white-green shirt and has messy brown hair. He is a very nervous and anxious person, but is also very humble, brave and resourceful. Wakaba has no memory of where he came from or what happened in his past. The sisters originally suspected him of being an advanced humanoid form of the red bug due to his human red blood, however this was debunked when they realized how weak he was. Wakaba accidentally discovers that his special ability is being able to unlock the powers of all the kemurikusa. This interested the sisters, so they allowed him to join them on their journey, though Rin remained skeptical of him for much of the trip. Despite this, Wakaba greatly admires Rin and does what he can to help the sisters, performing selfless acts on multiple occasions to help them fight the red bugs. It is hinted that he has romantic feelings for Rin, though he is also intimidated by her and is careful about being affectionate or giving compliments. When Wakaba unlocks Rin's Memory Leaf, it is discovered that he was a kemurikusa researcher in the past, which is why he is subconsciously able to utilize the leaves in the present. Wakaba was hired to harvest kemurikusa and create buildings and structures from them. He was friends with the First Person, Riri, who accidentally created the red bugs in an attempt to allow Wakaba to have more free time to play with her. His ONA character design is drastically different from his anime counterpart. In the ONA Wakaba has very short hair and wears an oversized white turtleneck sweater with green and grey striped sleeves. While somewhat clumsy and timid in the anime, the ONA depicts Wakaba as having decent reflexes and not being as easily scared. The older sister of Rin and Rina, and the leader of the trio of sisters. It is unknown if she is actually older in age, as Rin and the Rinas refer to her as the oldest simply because she gained consciousness before them. Ritsu has magenta cat ears matching her wavy magenta hair and wears a miko outfit. Her specialty powers are sound and being able to control the kemurikusa tree to help with fighting and traveling. Her cat ears are able to detach from her