Legal analysis: 1. As for the relationship between step-parents and step-children, since step-parents have not raised and educated step-children, step-children have no obligation to support step-parents or mothers. 2. For the relationship between stepparents and stepchildren with the same lifestyle, stepparents and stepchildren have formed a relationship of upbringing and education, and stepchildren have the obligation to support stepfathers or stepmothers.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 1072 Stepparents and stepchildren shall not be abused or discriminated against. The rights and obligations between a stepfather or stepmother and his stepchildren who are raised and educated shall be governed by the relevant provisions of this Law on the relationship between parents and children.

Article 1067 Children have the obligation to support and assist their parents. Parents who are unable to work or have difficulties in living have the right to ask their children to pay alimony when they fail to fulfill their alimony obligations.