"I guess i can use the tree instead"

Erwin pick up the planks and walk 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 a magic to stick the plank in 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 a target practice in the tree.

-Yosh

"This will do"

Erwin walk away from the tree to make some distance, Ilya has been looking at him since he stick 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, here"

Erwin pick up the book and handover the opened page to Ilya, Yuika's tugging Ilya's sleeve, she's curious with what Erwin's talking about.

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

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

"Hmmm i want to give it a try Ilya big sis"

Erwin just seems to enjoy himself he looks so excited to show it to Ilya.

Ilya can't do anything but to put smile on her face because Erwin seems happy that Ilya taught him magic.

"Well then go ahead"

Ilya take a steps back to give Erwin a s.p.a.ce, Yuika seems interested to watch Erwin do his magic.

Erwin closes his eyes and concentrate, he takes a position to cast the magic.

He looked into his right hand and cast 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 turn around and shows it to Ilya and Yuika, they both are looking at the blade in Erwin's hand, it looks like a hand knife but thicker and looks s.h.i.+nny because it's formed ice.

Erwin look back at the plank and throw the knife, it hits the planks.

Erwin make an another ice knife and throw it again at another plank below it and he hit it again.

"Yosh"

Erwin ran to see the hit marker on the planks, he release the magic cast of the ice blade after that.

Ilya's walking behind with Yuika towards the tree to see the results, Yuika's so amazed by 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 shows the plank to Ilya excitedly, he seems to be so proud and wanted to be praised for that.

"Ahahaha.. you sure have a talents Erwin"

Ilya pat Erwin's head gently and look at the planks.

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

"Big sis, you okay?"

Ilya has a serious face on, she seems curious with something and s.p.a.ced out for a moment.

"You want to keep trying 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 seems too amazed by Erwin after seeing him using magic and stuff, she's so impressed.

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

Erwin sit under the tree and cross his leg, he lean back to the tree and start reading the book to find more interesting magic he can learn and show it off to his sister.

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

"Yes.."

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

Yuika seems to be happy, she was able to see some amazing stuff today.

"Aren't you happy Erwin was so cool today Yuikchan?"

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