First 4 Days before Summer Break

A whole week passes fast, but for Xin, it's a fun week for him, not only he enjoys going everywhere with the girls he also harvests a lot of things from a terrorist organization.

He and Serafall go to a Comic Con, they both participate in a cosplay show where Serafall usually wears his Magical Girl Milky Spiral Seven.

While Xin wears a full set of Doraemon costume that almost causes a great disaster because of a bunch of women who want to get a picture of him.

A comic book convention or comic con is an event with a primary focus on comic books and comic book culture, in which comic book fans gather to meet creators, experts, and each other. Commonly, comic conventions are multi-day events hosted at convention centers, hotels, or college campuses.

They feature a wide variety of activities and panels, with a larger number of attendees participating in cosplay than most other types of fan conventions. Comic book conventions are also used as a vehicle for industry, in which publishers, distributors, and retailers represent their comic-related releases.

At commercial events, comic book creators often give out autographs to the fans, sometimes in exchange for a flat appearance fee, and sometimes may draw illustrations for a per-item fee. Commercial conventions are usually quite expensive and are hosted in hotels. This represents a change in comic book conventions, which traditionally were more oriented toward comic books as a mode of literature, and maintained a less caste-like differentiation between professional and fan.

Cosplay, a portmanteau of the words costume play, is a performance art in which participants called cosplayers wear costumes and fashion accessories to represent a specific character. Cosplayers often interact to create a subculture, and a broader use of the term "cosplay" applies to any costumed role-playing in venues apart from the stage. Any entity that lends itself to dramatic interpretation may be taken up as a subject and it is not unusual to see genders switched. Favorite sources include anime, cartoons, comic books, manga, television series, and video games.

After Serafall, Grayfia takes Xin to date, well it's not the usual date because Xin is too small. He looks more like Grafia's younger brother than a dating partner.

But Greydia insists, she takes Xin to an amusement park, eats in a fine dine restaurant, watches a movie play in the arcade center, and many more.

Because Grayfia doesn't have any experience in dating, all of this is the advice of Xin, and in the end they both still enjoy their own small date.

The next girl that takes Xin is a couple of Mother and Daughter, they take Xin to visit some local shrine.

Much more like a triple date for Xin because they do everything that they did on his date with Grayfia.

While on the date, Xin discovers that Shuri actually becomes strong in the past 8 years, she is stronger than the current male Mao right now.

And not only that she and Grayfia open a clothing shop that sells a luxury dress made from wool, but not only that.

The product of her company actually can use a defense armor because of the quality and the materials that she uses.

Almost all the Pure-Blood Devil know the brand of her clothing shop and she also has a bunch of suitors coming to her shop every day.

Xin asks her if she already finds a good partner for her life but she actually declines all of them, she said that she is going to dedicate her whole life to serving him like Melan.

Much more Akeno who also decides that she will be Xin concubine, mistress or lover.

Xin politely declines him because he is too young to have one, and it's not proper to let a bountiful girl as his mistress or concubine this thing is not worth for the kind of Akeno.

She has the right to find her future partner or lover not to become a concubine for Xin.

Well in the end Akeno insists that she will never marry anyone in this life except Xin, even if he does not accept him, she will silently follow him like her mother.

The next pair is Koneko, Asia and Gasper who is still wearing the large size glasses.

They want to spend some time and have fun with Xin so Xin takes them all to the north pole to hunt King Crab and play with the penguin.

He can take them in the town but he is already fed-up with the amusement park, game center, mall because he already went there in the past 3 days.

Crab hunting is fun as Xin expected, and the girls and Gastep enjoy playing with penguins and seals on the north pole.

In the end Xin goes back with tons of seafood that he harvests in the north pole from king crab, giant muscle frees fish and lobster, after he goes back he cooks a seafood feast for all of them.

The next day is Rias who canceled all her schedule just to make sure to solo Xin for the whole day, they did not go on a date because Rias took Xin back home just what she wished for.

and the whole day Xin's experience became a dress-up doll, he did not expect that Rias had a shotacon tendency.

She picked last day because she needed time to collect all the clothes, costumes and some toys to dress up Xin.

And not only him, Melan actually using stealth while taking picture of his master while being torture by Rias.

And for the last is the Grand Game of Sona and Xin, for a couple of days, Sona and Xin keep playing different games.

From board game, online game, mind game, dize game and many more, Sona who is smarter than anyone else in the underworld can't win even once to a 3-year-old kid.

In the very end, she chose a physical game. They first play tennis. Everyone knows that Sona is an expert when it comes to this sport so they thought that she already won.

But they did not expect Xin is also good in this kind of sport, even though his body is small and it's almost comical to see him holding an oversize tennis racket.

Xin who just uses his physical power can play this game even if his eyes are closed because he already mastered Haki, how the heck can even Sona win to him who can easily predict her every move.

And in the end, Sona asks Rias to be her teammate, but still, they can't win against Xin who laughs and taunts them.

In the end, Sona loses, but she still insists, she challenges Xin to play dodgeball with his maid and disciple.

But in the very end, even Issei lost Xin still won against them.

and the game continues, they play races, baseball, football, soccer, badminton, swimming and many more.

They end up using all the facilities in the school but they can still win against Xin.

At the very end of the day, Sona cries not because she did not get what she wanted but because she never experienced failure in her whole life.