How much does it cost to send a text message to China in Japan?

Both Softbank and docomo have mobile phones that can send short messages directly to domestic mobile phones.

Because sending text messages from Japan to China, the communication expenses are borne by Japanese mobile phones, and it doesn't cost a penny for domestic mobile phones to reply to text messages. So the price will be higher. My friend used Softbank's phone, which seems to be a package of sending 300 text messages at 5000 yen per month. You can go to Softbank business hall for detailed consultation or call for consultation.