When a Black Hole challenges a termo-nuclear bomb for a race, one can expect that something will go dramatically wrong.

The path to the astronomy tower was relatively empty and easy, so that part went smooth and without major damages. The problem was when they entered the tower and started to run up the stairs.
Beside a few paintings that will never be the same, a broken window and a few minor hand-shaped holes here and there on the walls, the classroom of astronomy was close to demolished.
XinLan, thinking there'd be another turn of stairs, failed to stop in time and crashed into the door, breaking inside the room. The door itself got pushed off the hinges and flew at full speed against the biggest telescope, that got pushed off the window and fell down into the rocky ground, shattering in a million pieces.

Naturally it was Finch who caught them. What made it even more serious is that the access in the astronomy tower is strictly forbidden outside the class hours.
He dragged them both to the leaders of their Houses.

Professor Sprout, a bit hesitant about these foreigner students, decided to send a detailed mail to XinLan's parents, explaining the damages he caused, the risks he took and all the details. She is less used than McGonagall about all the troublemakers.
The other teacher sends an even more furious letter and despite she knows that Sprout already contacted them about XinLan, she felt the need to throw salt in the wound and mention him again too.

Lani was already bitter how not even one of their kids was in Ravenclaw, one can only imagine his face when his gaze landed on those letters.
He knows many things about the magical world and there is something he always found intriguing, that he finally gets the chance to test.

Now, regardless XinLan's absolutely flawless argument regarding why he doesn't want to go to that school, Lani's prideful side can't help but wanting their own kids to take part to this cultural exchange too.
WuXin is the headmaster, how can their sons not be among the sent one? He is naturally still feeling in a competition with TiHao about whose kids are better!!!

Now, XinLan can be very stubborn and messy when he really doesn't want to do something. In order to convince their most unruly children to go to Hogwarts and be good boys there, Lani offers them a double prize: a smaller one before they go and a very big one when they return, if they will make them proud. The small prize will be WuXin's choice and the big one will be totally up to the kids. He promised he will get them anything they want.

They didn't exactly appreciate the fact that Old Luo basically made himself the headmaster of Shiinden School for this matter, but after all he didn't do anything harmful. He just wanted to show off and all in all, his choice to send HaoLin wasn't bad, for a simple reason: he is one of the most diligent and quiet students, so there are good chances he won't cause troubles and make their school look bad.

As for the other students to send, well, they sure asked all his children first, including XinLan. But his response was the following:
«Why should I go to study to another school for a time, when I don't even want to study for the school I go to?».
And Lani had nothing to debate about.

Anyhow, the guys who will have to go to Hogwarts for the cultural exchange will need a number of items to be able to properly attend the lessons. Some they will buy in Nortrig, others they will need to buy right from Diagon Alley.

Thanks to their status, it's not hard for Lani and his kid to go to Heinhoss while for the Old Luo, WonPil had to get a special permission from the King.
But before heading to Heinhoss, the stop is the overly expensive tailor YunFei spoke to, to design their 'uniform'.
They will meet right in front of that tailor.

After being muted by WuXin, he just shakes his head and takes the kids back home. He is still angry, especially much at XinLan, who quickly becomes the next victim of his rage, when the muting ends.

While shouting and growling at him, he also lists a never-ending number of punishments which include: no garden, no leaving his bedroom, no phone, no tomatoes, no friends. For an unspecified amount of time.

He really had a long conversation with WonPil about their youngest sons, as he wanted to make sure that there would not be problems on either side. Also to be sure that WonPil would understand what he was getting himself into.

Other than their routines, personalities, habit and diets,he also recommended to always keep an eye on WuMei at night, since he is way too much of a rascal.
School is even closes for holidays, so they have no way to get rid of him for even just a few hours!!