Vocabulary consisting only from characters you are able to read
守る
mamoru
(1)to protect/to guard/to defend/ (2)to keep (i.e. a promise)/to abide (by the rules)/to observe/to obey/to follow/(P) godan, jlpt3, leda1, verb, vtrans
開通
kaicuu
opening, open, taking effect, becoming activesuru
組
kumi
(1)set (of items)/ (2)group (of people)/class (of students)/company (esp. construction)/family (i.e. mafia)/team/ (3)typesetting/composition/(P) leda1
唯一
juiicu
only, sole, unique; only, sole, uniquemix