Undead Unluck episode 23 delves into Akira Kuno's origin story as Anno-Un, the real person behind the appearance. He gains a unique power from the G-Liner pen artifact, but at a cost: he exists outside of reality and cannot be perceived by others. Despite this, he uses his power to create a successful manga and intervenes in the battle of the heroes against Under. The episode ends with a dramatic showdown between the heroes and Under agents, setting the stage for the season finale. Akira's story showcases the bittersweet nature of Negator powers and the sacrifices they entail.

Ultimately, his actions may change the course of events and lead to the heroes' victory, highlighting the impact of one individual's choices on the fate of others.