Vocabulary consisting only from characters you are able to read
夢中な
むちゅうな
daze/(in a) trance/ecstasy/delirium/engrossment/within a (deep) dream/(P)adj, jlpt3
鎖国
さこく
national isolation, exclusion of foreignerssuru
一体
いったい
(1)...the heck (e.g. "what the heck?"), ...in the world (e.g. "why in the world?"), ...on earth (e.g. "who on earth?"), (n) (2)one object, one body, unity, (3)one form, one style, (4)one Buddhist jlpt3