Cleaning agent composition and paste cleaning method

A cleaning agent composition comprising:

• 0.5% by mass or more and 10% by mass or less of a component (A);
• 1% by mass or more and 10% by mass or less of a component (B);
• 1% by mass or more and 10% by mass or less of a component (C);
• 0.1% by mass or more and 5% by mass or less of a component (D);
• and
• 65.0% by mass or more and 97.4% by mass or less of water,
• wherein
• the component (A) is a compound having an alicyclic hydrocarbon group or an aromatic hydrocarbon group and having a molecular weight of 90 or more and 180 or less,
• the component (B) is a compound represented by Formula (1):
• in Formula (1), N representing a sum of average addition mole numbers of C2H4O group is a number of 20 or more and 100 or less,
• the component (C) is a compound represented by Formula (2):
• in Formula (2), R1 represents a branched alkyl group having 6 or more and 18 or less carbon atoms, and n representing an average addition mole number of C2H4O group is a number of 2 or more and 12 or less, and
• the component (D) is a surfactant having an aromatic group.