Maybe this one could be something with two of the following three(likely alongside plain ones): voiceless dental fricative released sounds, bilabial fricative released ones, and voiceless alveolar sibilant fricative release(like some Ryukyuan dialects unless it's a misanalysis).
Consonants:
Vowels:
Syllable pattern:
Stress:
Writing system:
Writing direction:
Number system:
Sets of number words:
Word order:
Grammatical gender:
Grammatical number:
Tenses:
Aspects:
Moods:
Noun cases:
Noun classes:
Other factors: