Erwin walks and picks up the planks he uses to practice and arrange it one more time, he turns back and saw Yuika got her mood back, she's having chat with Ilya right now, Erwin looks around and stares at the apple tree behind their house.

"I guess I can use the tree instead"

Erwin picks up the planks and walks towards the tree, he stood up facing the tree and try to position the plank in the tree.

- Like this maybe?

[ Water Magic, Glue trap ]

Erwin cast sticky magic to paste the plank on the tree, he just read some advanced water magic expansion and he comes up with the idea to stick the plank to use it as target practice on the tree.

"Yosh, this will do"

Erwin walks away from the tree to make some distance, Ilya has been looking at him from the moment when he sticks the plank on the tree and curious what he gonna do.

"What are you gonna do with that?"

Ilya point at the plank on the tree, Yuika seems curious too and decided to tail Ilya from behind to see what they're up to.

"I want to try this water expansion magic you show me Ilya-nee, here"

Erwin picks up the book and hands it over to Ilya, she looks at the open page and murmuring, Yuika is tugging Ilya's sleeve, she's curious with what Erwin has been talking about.

"Here Yuika-chan, it's an ice forming magic, but Erwin, you sure you can use it? it's intermediate level magic you know?"

Ilya lowers her body to show Yuika the book and the magic they're talking about.

"Hmmm I want to give it a try at least, Ilya-nee"

Erwin just seems to enjoy himself he looks so excited to show it to Ilya, Ilya can't do anything but just put a smile on her face because Erwin looks so happy that he was finally able to learn magic and use it correctly.

"Well then go ahead"

Ilya takes a step back to give Erwin some space, Yuika is also interested to watch at Erwin casting the magic.

Erwin closes his eyes and concentrate, he takes a position to cast the magic, Erwin stares into his right hand and casts the magic.

"Come and Freeze, [ Ice Magic, Ice Blade ]"

A water spurt from his magic circle in his palm and freeze in no time forming a blade people can hold in hand.

"Ah look, Big sis"

Erwin turns around and shows it to Ilya and Yuika, they both are looking at the blade on Erwin's hand, it looks like a hand knife but thicker and looks shiny because it's a piece of formed ice.

Erwin looks away at the plank and throws the knife, it hits the planks, Erwin formed another ice knife and throws it again at the other plank below it and he hit nicely.

"Yosh"

Erwin runs to see the hit marker on the planks, he erases the magic and makes the blades disappear, at the same time, Ilya's walking from behind with Yuika approaching the tree to see the results, Yuika is amazed looking at Erwin when he threw the blade and hit the target, the quiet Yuika has turned into an enthusiastic kid for a moment that time.

"Look...Look, big sis, I hit them both"

Erwin showed the planks to Ilya excitedly, he seems to be so proud and wanted to be praised for that.

"Ahahaha.. you sure have talents Erwin"

Ilya pats Erwin's head gently and stares at the planks.

- He even knows how to throw a knife, who taught him though

"Big sis, you okay?"

Ilya put on a serious expression, she looks curious with something and spaced out for a moment.

"You want to keep trying another magic, Erwin?"

Ilya let go her hand from Erwin's head and start pinching Yuika's cheek gently and laugh, she did that because Yuika looks so amazed too by Erwin after seeing him using awesome magic, she's so impressed and can't let go of her eyes off Erwin.

"Yeah I will try some more spells from the book"

Erwin sits under the tree and crosses his leg, he leans back to the tree and starts reading the book to find more interesting magic he can learn and show it off to his sister later.

"Okay then, it's almost dinner time, don't overdo it and go in after I finish making dinner for us"

"Yes..."

Ilya walks back to accompany Yuika to go home first, her family must be worried now because it is almost time for dinner.

Yuika looks so happy that she was able to see some amazing stuff today.

"Aren't you happy Yuika-chan? Erwin was so cool today"

Ilya likes to tease Yuika, she just keep teasing Yuika all time, they seems to enjoy it and they just laughing sometimes on their way to Yuika's house.