不思議, ふしぎ
NA-adjective
1. wonderful, marvelous, strange, incredible, amazing, curious, miraculous, mysterious
Adverb taking the 'to' particle
2. strangely enough, oddly enough, for some reason, curiously
この刀には不思議ないわれがある。
に
Particle
1. at (place, time), in, on, during
2. to (direction, state), toward, into
3. for (purpose)
4. because of (reason), with
5. by, from