Search of Genres for "shounen"

Nicococo!!
Nidoume no Jinsei wo Isekai de
Ningen no Tenshi
Ninth Special District
No Game No Life
No Hero
Noblesse S
Noise City Osaka
NPC Survival Guide
Nurarihyon no Mago
Ochita Kuroi Yuusha no Densetsu
Oda Nobuna no Yabou
Oda Nobuna no Yabou Gaiden – Jakigan Ryuu Masamune
Okitara 20nen Nandesukedo! Akuyaku Reijo no Sono Ato no Sono Ato
Old Maid
Omae o Otaku ni Shiteyaru kara, Ore o Riajuu ni Shitekure!
Omni-Magician
One Piece Talent System
One Piece – Thundergod Marine
One Piece: The Soul Purchasing Pirate
One Punch of Justice
Onegai Twins
Ongaku no Shinigami
Only Sense Online
Only Sense Online (WN)
Only Sense Online - Hakugin no Megami
Ore ga Heroine wo Tasukesugite Sekai ga Little Apocalypse!
Ore ga Isekai Dungeon da! - Tensei Shitara Karada ga Dungeon to Kashiteita
Ore ga Ojou-sama Gakkou ni "Shomin Sample" Toshite Rachirareta Ken
Ore ga Suki nano wa Imouto dakedo Imouto ja Nai
Ore no Kanojo to Osananajimi ga Shuraba Sugiru
Ore no Nounai Sentakushi ga, Gakuen Rabukome o Zenryoku de Jama Shite Iru
Ore to Kanojo ga Geboku de Dorei de Shuujuu Keiyaku
Ore to Kanojo no Moeyo Pen
Ore wa LV99999, Shikashi, Ore no Tokei ga 1
Ore wa Ryouri to Kaji de Maou wo Honenuki ni Suru: Isekai kara Hajimaru Shufu Musou
Ore wo Suki Nano wa Omae Dake ka yo
Ore, Twintails ni Narimasu.
OreMegane
Other World Assassin Life of a Man who was a Shut-in
Overgod Ascension
Owari no Chronicle
Owari no Chronicle DC
Owari no Seraph
Owari no Seraph – Kyuuketsuki Mikaela no Monogatari
Panlong
Papa no Iu Koto o Kikinasai!
Peerless Demonic Lord
Peerless Immortal Surrounded by Demonic Disciples
Peerless Martial God