Vocabulary consisting only from characters you are able to read
工夫
kufuu
(1)scheme, device, scheming, devising, figuring out, coming up with, solving ingeniously, (2)dedication to spiritual improvement (esp. through Zen meditation); (sens) labourer, laborer, blue-collar suru
予習
yoshuu
preparation for a lessonjlpt4
内気(な)
uchiki(na)
bashfulness/shyness/reserve/timidity/(P)adj, leda1
動画
douga
(1)animation, motion picture, moving image, video, (2)in-betweening (in anime) suru
帰着
kichaku
return, conclusionsuru