Kenichi 
Isekai Tensei: Recruited to Another World (Manga): Volume 4 [EPUB ebook] 

When a nearby village is taken over by evil bandits who have enslaved the women there, Tenma and his party of catgirl triplets come to the rescue! But their heroic efforts draw the attention of the Gunjo City knights, who can’t help but doubt their story. Later on, Tenma crosses the wrong person and ends up having to compete in a duel with a noble…and the penalty for losing is death?! Who will be victorious? Follow Tenma’s exciting adventures in Gunjo City!