Junta Shiraishi is a high school student with one simple goal—to enjoy his youth. However, achieving this goal is not so straightforward since Shiraishi is effectively invisible to his peers; even his teachers routinely fail to notice his presence. In fact, there is a rumor circulating that whoever manages to spot him will receive good luck. But there is one person who notices Shiraishi's presence without fail. Seated right next to him, Nagisa Kubo is determined not to let him quietly fade into the background. Unfortunately for him, this means that Shiraishi finds himself in some peculiar situations, all orchestrated by Kubo. Despite this, Kubo's playful antics might just be the catalyst needed to spark the thrilling youth that Shiraishi longs for.

In a modern metropolis there is a small store called "Time Photo Studio." Although only a few customers come to visit, it's actually run by Cheng Xiaoshi and Lu Guang, two men with special powers. They cooperate and use their super powers to enter the photos in order to fulfil the client's request. However, things always get out of their control...

Takuma Sakamoto is a hikikomori gamer who is mysteriously transported to the virtual world of his favourite MMORPG, Cross Reverie, with the appearance of his own character in the game, the Demon Lord Diablo. The two young girls who summoned him, the pantherian Rem and the elf Shera, attempt to use a spell to make Takuma their servant, but due to his magic ring with the ability "Magic Reflection", the spell rebounds, and both end up with magic collars stuck on their necks, thus becoming his servants instead. With a serious case of social anxiety, Takuma decides to act like his character while interacting with others, and makes use of his high stats and vast knowledge of Cross Reverie's lore to survive in his new environment, traveling along with Rem and Shera to look for a way to remove their slave collars, while helping them with their own personal issues that led them to summon him in the first place.

Intrepid adventurer Bell Cranel has leveled up, but he can’t rest on his dungeoneering laurels just yet. The Hestia Familia still has a long way to go before it can stand toe-to-toe with the other Familias of Orario — but before Bell can set out on his next mission, reports of a brutal murder rock the adventuring community! One of Bell’s trusted allies stands accused of the horrible crime, and it’s up to Bell and his friends to clear their name and uncover a nefarious plot brewing in the dungeon’s dark depths.