Naruto Uzumaki, the protagonist of the anime series "Naruto," adopts a baby monkey on his journey, naming it "Konohamaru." The monkey stays on Naruto's back, eating, sleeping, and even urinating and defecating. Instead of getting angry, Naruto takes care of the monkey. 

Due to its rapid growth and aggressive nature, Naruto is sent on a mission to eliminate bandits, with the monkey by his side. However, when the monkey reunites with its real mother, it forgets about Naruto. 

Eventually, the monkey remembers the love and care Naruto gave it and carries an unconscious Naruto back to the village. The monkey silently departs, leaving Naruto wondering if he thinks about their time together.