Here, are the list of best hikikomori shows as below: 同居人はひざ、時々、頭のうえ。, エロマンガ先生, ノーゲーム･ノーライフ, .
The story of Mikazuki Subaru, a novelist who is shy and struggles in relationships with other people, and a cat who was dumped by humans and lived a tough life on the streets. Through a twist of fate, the two of them end up living together. This heartwarming tale illustrates day-to-day life through the eyes of both man and cat. These moments seem trivial, but as they build upon themselves, the two become family and find happiness in their life together.
OTT Platforms for 同居人はひざ、時々、頭のうえ。 are U-NEXT
This "sibling romantic comedy" revolves around Masamune Izumi, a light novel author in high school. Masamune's little sister is Sagiri, a shut-in girl who hasn't left her room for an entire year. She even forces her brother to make and bring her meals when she stomps the floor. Masamune wants his sister to leave her room, because the two of them are each other's only family. Masamune's novel illustrator, pen name "Eromanga," draws extremely perverted drawings, and is very reliable. Masamune had never met his illustrator, and figured he was just a disgusting, perverted otaku. However, the truth is revealed… that his "Eromanga-sensei" is his own younger sister! To add to the chaos that erupts between the siblings, a beautiful, female, best-selling shoujo manga creator becomes their rival!
OTT Platforms for エロマンガ先生 are U-NEXT
This is a surreal comedy that follows Sora and Shiro, shut-in NEET siblings and the online gamer duo behind the legendary username "Kuuhaku." They view the real world as just another lousy game; however, a strange e-mail challenging them to a chess match changes everything—the brother and sister are plunged into an otherworldly realm where they meet Tet, the God of Games. The mysterious god welcomes the two to Disboard, a world where all forms of conflict are settled through high-stake games. This system works thanks to a fundamental rule wherein each party must wager something they deem to be of equal value to the other party's wager. In this strange land where the very idea of humanity is reduced to child’s play, the indifferent genius gamer duo of Sora and Shiro have finally found a real reason to keep playing games: to unite the sixteen races of Disboard, defeat Tet, and become the gods of this new, gaming-is-everything world.
OTT Platforms for ノーゲーム･ノーライフ are Netflix