Kanojo wa Mizumizushii

On a cold winter afternoon, Daichi Inui notices his classmate Mizuki Mizuno crying and shaking at her desk. After he offers her a tissue, she profusely apologizes, saying that she gets excessively sweaty and teary-eyed when she is nervous. Noticing that his dry hands have become moisturized by her tears, Daichi begins to wonder if hanging out with Mizuki would enrich both his body and soul.
(Source: MAL Rewrite)