無職転生 ~異世界行ったら本気だす~ 21 (light novel)

Zenith--Rudeus's mother--has been kidnapped. Rudeus runs himself ragged searching for her in every corner of Millishion, following his late father Paul's orders to protect her at all costs. Ever on the back foot and outmaneuvered at every turn, Rudeus struggles to break through adversity and bring his mother back, safe and sound.