Suicides are on the rise among Japanese teens and that worries 21-year-old Koki Ozora, who grew up depressed and lonely. His nonprofit "Anata no Ibasho," or "A Place for You," is run entirely by volunteers. It offers a 24-hour text-messaging service for those seeking a sympathetic ear, promising to answer every request within five seconds for urgent ones. The online Japanese-language chat service has grown since March to 500 volunteers, many living abroad in different time zones to provide counseling during those hours when the need for suicide prevention runs highest, between 10 p.m. and the break of dawn. The site setup ... allows more experienced staff to supervise the counseling. Anonymity is protected. Anata no Ibasho has received more than 15,000 online messages asking for help, or about 130 a day. The most common ones are about suicide, at about 32%, while 12% deal with stress over raising children. The goal is to offer a solution within 40 minutes, including referrals to shelters and police. Contrary to the stereotype of Japan as harmonious, families are increasingly splintered. A recent OECD study found Japan ranks among the highest in the world in suffering isolation. Counseling through online chats can be a challenge, because all you have are words, said Sumie Uehara, a counselor who volunteers at Anata no Ibasho. "You don't ever negate their feelings or try to solve everything in a hurry. You're just there to listen, and understand," she said.